Home / 129,955.38-195,017.04-89,856.90

Finding the Fourth Proportional to 129,955.38, 195,017.04 and 89,856.90

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Solution

The fourth proportional to 129,955.38, 195,017.04 and 89,856.90 is: 134,843.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,955.38 : 195,017.04 = 89,856.90 : x
  2. Step 2: Convert to fraction form
    129,955.38/195,017.04 = 89,856.90/x
  3. Step 3: Cross multiply
    129,955.38x = 195,017.04 × 89,856.90
  4. Step 4: Simplify right side
    129,955.38x = 17,523,626,661.58
  5. Step 5: Solve for x
    x = 17,523,626,661.58/129,955.38
  6. Step 6: Final answer
    x = 134,843.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.